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The MacBook is Apple’s line of laptop computers introduced in 2006. Although there are many varieties of the MacBook, they fall into one of three categories; the MacBook, MacBook Pro and MacBook Air. All MacBook models are Wi-Fi compatible and contain a built-in wireless AirPort card, which is Apple’s brand of wireless card.

Non-Functioning AirPort Card

To confirm that your MacBook recognizes the AirPort card, pull down on the apple in the upper left corner of the screen and select “About This Mac” and click on “More Info.” Highlight “Network” in the column on the left. If an AirPort card is working properly it will be listed in the column on the right.

Wireless Not Enabled

Another issue that prevents your MacBook from connecting to your Wi-Fi is an AirPort card that is disabled. In the upper right corner of your screen, pull down on the pizza slice-shaped wireless icon and select “Turn AirPort On.” Once it has been turned on, it will search for your wireless network. If your network is password-protected, you will have to enter your Wi-Fi password (also known as a network key).

Incorrect Network

Attempting to connect to the incorrect network is another problem that prevents you connecting to your wireless network. Pull down on the wireless icon to confirm your network is selected and not another one that happens to be within range.

Older MacBook – New Router

If you have an older MacBook with a Wireless-G AirPort card and your router is only Wireless-N compatible, you won’t be able to connect without a software update. Although not common, Apple sells a utility that solves this issue. It is available through its App Store or at store.apple.com/us/product/D4141ZM/A.

Other Network Issues

Although not common, sometimes an issue with the router is to blame. There are many things that can go wrong with a router and/or a wireless network, but in many cases a simple power down/power up of the router and the modem can cause a buggy or non-functioning network to start working properly again.

About the Author

Christopher Capelle is a freelance copywriter with over two decades of experience. Subjects of his writing include the business and technology fields, consumer products and home repair/improvement. He graduated from The University of Connecticut and earned a master's degree in journalism from Iona College.